ByteDance has released Seedream 5.5, an AI image model that it says keeps the unchanged parts of a picture intact across 100 rounds of edits.
The company's Seed research team announced the model, which also creates assets with transparent backgrounds. It is rolling out in ByteDance's Chinese apps. The performance claims are ByteDance's own.
Two features carry the pitch. The first is edit stability. Many image generators handle an edit by re-rendering the whole picture, so a request to change a shirt color can nudge a face, a texture, or a line of text. Stack enough edits and those small shifts accumulate into visible damage, a problem often called drift. Seedream 5.5 is pitched as a fix for that.
The second is transparent backgrounds, meaning an image with an alpha channel (the layer that marks which pixels are see-through). That is the format for logos, stickers, product cutouts, and anything dropped onto another design. Without it, users have to cut subjects out by hand or run a separate tool.
The number 100 works better as a stress test than as a description of real use. Few people edit one image 100 times. What matters is whether the result after 5 or 10 changes still matches the original in the areas the user did not touch, and that is where drift usually shows up first.
The pairing suggests where ByteDance is aiming: repeatable, production-style work such as ad variants and design assets, rather than one-off novelty images. Whether "intact" holds up on faces, small text, and fine detail is a question for independent testers once the model reaches users outside ByteDance's own apps.